[rake --tasks] E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/spec_set.rb:88:in `block in materialize': Could not find sqlite3-ruby-1.2.4 in any of the sources (Bundler::GemNotFound)
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/spec_set.rb:82:in `map!'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/spec_set.rb:82:in `materialize'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/definition.rb:107:in `specs'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/definition.rb:152:in `specs_for'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/definition.rb:141:in `requested_specs'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/environment.rb:23:in `requested_specs'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/runtime.rb:11:in `setup'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler.rb:110:in `setup'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/setup.rb:17:in `<top (required)>'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
[rake --prereqs] E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/spec_set.rb:88:in `block in materialize': Could not find sqlite3-ruby-1.2.4 in any of the sources (Bundler::GemNotFound)
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/spec_set.rb:82:in `map!'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/spec_set.rb:82:in `materialize'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/definition.rb:107:in `specs'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/definition.rb:152:in `specs_for'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/definition.rb:141:in `requested_specs'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/environment.rb:23:in `requested_specs'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/runtime.rb:11:in `setup'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler.rb:110:in `setup'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/bundler-1.0.22/lib/bundler/setup.rb:17:in `<top (required)>'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
from E:/Programme/RailsInstaller/Ruby1.9.3/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'

and when I try to run

'rake db:create'

as told in the redmefile of the software, I get

'rake aborted. Bundler couldnt find some gems.'

What can I do? Eh, by the way, Iam a completely newbie in rails :)

---------------------------------

eh and another thing is that the foodsoftprogrammer tells in the readme file: